`sudo port upgrade <some_port>` tab completion error

[paxperscientiam (Chris)]

Never noticed this before, so it may be a new thing. Basically, after writing, for example, sudo port upgrade a and tabbing, the first completion result is "Warning: port definitions are more than two weeks old, consider updating them by running 'port selfupdate'."

Is this intentional?

Demo: ​https://www.dropbox.com/s/n7v8312bx5l8uej/Screen%20Recording%202019-05-07%20at%209.53.15%20AM.mov?dl=0

EDIT: I forgot to note, that this only occurs when definitions are actually out of date.